Door opening and closing mechanism.



. G. F. JENKINS. 000E OPENING AND CLOSING MECHANISM.

[,254696. l APPLICATIUN lFILED MAY 29. I9I6`. Patented Jan.

5 SHEETSSIIEET l.

e: FniNIuNs.4 DOOR OPENING AND CLOSING MECHANIS'M.

V APPLICATION FILED IIIAY 29.1916. I 1,254,696. Patented Jan.l 29,1918.

' 4 '5 SHEETS-'SHEET 3.

APPLCTION FKLED MAY 29| 1916- Patented Jan. 29,1918.

Z lL/265565.-

UNITED STATES PATENT OFFICE.

GEORGE F. mimmo, 6i* LA GRANGE, ILLINOIS.

noon. QPENNG ND CLOSING MEGHANISM.

Specication of Letters Patent.

Patented dan. 2g,

Application :nea my 29,1916. semi-m. 100,458.1

Another object. of nl v invention iS to prof vide simple and effective meann'for me-` ehanicall `v opt-nini; and closing selecte-(1 doors and controlling mea-nSj'for said door?.v

operating means, \vher'eh v"to loperateany .given-door from a selected group of doors,

fir-,simultaneously a selected number of 'doors from :I plnrality off of the doors,l of a given gro'up. Other and further objects of my 'invention will become readily apparent. rol per (sons skilled in the art. from a consideration of the following description when'- taken in Figure 1 is a front elevation of onedoor of a, group, and 4a part. of another, and the operating mechanism for a 'given door Yand selective mechanism for a plurality of doors and groupsof doors.

Fig. 2 is a transverse section, taken on line 2T-2 of Fig. 1.

Fig 3 is a side elevation of the operating mechanism necessary-for a single door.

Fig. 4 is a plan view oT the same, looking from the bottom.

Fig. 5 is a central, longitudinal section of the clutch to connect. the, cable drums to their driving shaft..

Fig. G is an end elevation of a door-operating mechanism showing the door-operated controlling lever` taken on line t-G 'of Fig, P.

Fig. 7 a transverse section taken on lino 7-7 of Fig. 3.

Fig. S is a side. elevation of the groupselecting mechanism and doorselecting mechanism.

Fig. i) is a transverse section taken on line omai of Fig. R.

l"i; f l0 is a transverse section taken on iino l0l0 of Fig. R.

door-selectoroperable'for ail the doorrfro'm groups of doors or allbc Sclcctcfl and Subsequently an# door' withs so Fig. 1 1 'ne ecetien'tanen on im@ IIAI cf rg. a i

Ihii :tii Views `the same -reference 'chartzis are employed to indicate' similar` parts.

Briefiy," my invention consists 0f la sepurate mechanism "for opening-and'jeloaing v cach door of a number of floors, which may derive-'o ernting po'wer'from' n common' source c' powcryaneh, 'for cxnmpleynaa continuously matting allait," 'nrrnngredfliin substantial alne'nn'ent with 'the sereeof doors and -whiclrfinaybe turned 'in n given direction to mista-"or to open the doors, and

capable of heing--revereethno :1s-to hc turned. itl the opposite 'direction 'to lower or le the doors."

ism for a given-door is determined liva a given, or centralpoint. 'Fnrthertoteit. consists 'of a 'groupeelector"whereby any group containing-.xr 'number 'of doorn] may in the selected gmnporali-'ofthe doorn of a given group, determined by. thejrloor selector. w 1

In the illustration of the speciic einbodi; ment, which I'hnv chosen to discloscm'y invention. and which is capable of wide deviation, heiner limited' only b v. the Scopo ,of the appended claims, '15u15' is, a two-part vcrticaily-s'lidable ldoor` movable in l,guideways 16, placed on either side of the doors. Thel door raising; mechanism, operates transmission ropes or cables lil-17'` which are connected to thc-lower edile of the door'jsec the lower edge 2O of'=:tlio door section-15, 160

then further movement/of the cables' will raise botll doors. The door 15 carries a projection 2l for copcration with n .pivoted control leveiI of the door-moving'- mechanism, whereby-to arrest. the movement 1'05 of the caldos l'T--l' whoii the doors I5--l5' have moved downwardly h v effet-l of 1gravity, into their normally closed positions. as Shown in Figs. l and h The door I3 varlios a. similar projet-.tion alli. lo engage the, 12'.'

pivotal lever 22 ,when the door 'sections 15-15 have been moved to substantially their upper limit of movement, so as to stop the movement ofv the lifting cables 17 and 17 'when the doors have been moved upwardly to their full -pen positions.

A means for operating all of the doormoving mechanisms may'take the form of a shaft 24 which may extend longitudinally, in

alinemen't with a series of doors, preferably above the doors, in suitable hearing hangers and through the casings 25 of the dooroperating mechanisms. Suitable means for controlling the source of power for rotating the vshaft may be employed. In the particular embodiment-I have shown an electric motor 26, connected with electric cur-A rent'sup ly-wires 27 and 28 and controllable b the rieosta't 2 9. YThe .motor26 isv prov1ded with ulleys 30 and 31, on the respec-y ti've vends op pulley 35, VA clutch ,member 36 is slidable up'onthe power shaft 24 by means of a hand operated lever-.37, whereby to change the direction of rotation of the shaft 24, which is supplied 'with power,- by the uni-,directional-4 .30 speed motor.l When thelclutch part 36 1s axially moved on the shaft 24 into connection with the clutch memher'on the pulley -33 Vthe straight belt 3 2 will rotate the shaft 4in a given direction which, for example, is sr'the direction necessary to raise the door 'scctions-15-15', or to open the doonwhere 5 as when the clutch member 36 is axially.

5' .moved on the shaft 24 in connection with the clutch member on the pulley 35 the cross 40 belt 34 will 'rotate the shaft 24 in the op-A positedirection or in the direction necessary,

to lower the door section, or to close the door.

lever 4 1, c'apable of being rotatedv an stopped at either of4 four positions, ndcated by the numerals l, 2, 3 and 4, to desig- 1. natoas manydi'erent groups of doors. Un-

in the hanger 73, is provided with' ev ver.

tically projecting head 52, at one end, and

a` similar projecting head 531m. the other,

cads 52 and 53 and intervening` end. -The rack 50 are slidableralong arsquared shaft 54, in the hanger hearug,-'which shaft is l5 generally parallel with-the ,power shaft 24 rotation otthe .squared shaft.

its armature shaft` the former being connected by a straight belt 32 to a v pulley 33 on the power shaft' 24, the-latter eing connected by across belt 34 to the l 40 is'theUgroup-selecting mechanism. The- 45 drawings show a hand opera-ted, indicatin .meshes into a Worm wheel 86.

4jaw clutch 88. clutch 89 is a part of the sleeve 90 (slee Fig.

and substantially coextensive therewith. The heads and 53 are perforated with round orifices 54 so that the squared shaft 54 may freely be axially moved therein and so that the. heads will not interfere with the A two-part collar 56 is secured to the shaft 54 in' substantial Contact. with the head 53, as by I I screws or bolts. 53, and another similar collar 59 is securedsubstantially in Contact with the head 52, to the shaft 54as by bolts 60, so that as therack 50 is longitudinally moved by rotation of the pinion 49 the shaft 54 is axially moved therewith; 4 v

The group-selector, as indicated, is adapted to control four-groups of doors. The number of' doors in cach group is indicatedhy the doorsclector 60. Like.the.group.se

lector it., is provided 'with' avdialGO uponwhich are indicated, at uniform distances near the periphery,vthe numeralsrlL to 7 inf: dicative of the number of doors,1'w1thin the arsv ' several groups, controlled by. the. door scfn lector 60. A. handle or pointer 61 is ,secured to a shazft62, which carries'oil inner end 90.

f a'bevel pinion 63, which; meshes'witha similar bevel pinion 64 that is secured to a ver4 ticallygextending, shaftf.;` ,Thissh'aft can. ries a worm I66 uporiritspupperendf which;v meshes-in a worm vWheelj'( looselyv carried 95` upon the squared shaft 54; The worm' wheel 11 67 permits axial movement o'ftlieshzlft1549i.,H but is rotatably secured thereto.- 4'Ihewmmy I wheel is located between arm'is168 and I.69, which are prolongations of the hanger 70.` -100 The collar 71 is fixed upon the upper'end of the'v shaft 65 and. is held .inplace by a Pinie. f 1' The distance between .the-hanger 70 and vthe hanger 73 may be varied to aceommo--105 date the .number of door requirements, for the axial movement of the shaft 54, for a purpose to be hereinafterv more fully explained.Y Y, ,Y y

An indicating disk 75 is fixed to the shaft 110 54 and is rotatable therewith and indicates the position of the cams carried by the sha ft;4 54 with reference to its rotary path.

' The door-operating mechanism 76 consists i of a base 77 provided with hangers 86 and 115 81 for the power shaft 24, or a sectionfthere- "of, carryingv a worm 85 which is secured thereto and rotatable therewithV and which The worm wheel 86 is -rcvolubly loose upon the shaft- 87,l but carries upon its side face a threc- A coperating threejaw 5) that is slidable upon the shaft 87, but Vis rotatably fixed thereto by a spline and feather 91. The sleeve is provided with lan enlarged head 92. A sleeve 93 is loose on the 'sleeve U0, and has an annular head 93' between which and the hub 92 there is an open space 94 when the elutth is closed,

Within which a clutch operablelever 95 is' adapted to be moved. Within lthe annular space between the head 92 and the annular enlargement 93 on the sleeve 93, is a loose two part yoke member 9G provided 'with oppositely. disposed studs 97 for pivotal engagement with arms 111 and 112. The .sleeve 93 is axially movable upon the sleeve 90 resisted by the spring 99, and between the clutch portion 89, ol the sleeve 90, and the head 93' of' the sleeve 93, is this open helical spring 99,. An annular enlargement 100 is placed upon the shaft 87 to prevent the Worm Wheel 80 from moving out of its position when the clutch members are dis engaged.l The sleeve 90 and clutch member 89 are adapted to he automatically moved by the clutch o )emitting lever 95, axially of and on the shadt 87- todisengage .the clutch members 88 and 89.

A hanger 102 is fixed to the base 70, as by bolts 103. It is provided With downwardly extending arms 104 and 105 (Fig. T) to aliord bearings 106 for a prolonged camcarrying sleeve 107, that surrounds lathe squared sha-ft 511 `and which is axially movable therewith. It. is also provided with two downwardly and outwardly extending arms 108-108 with a connecting web 1.09. The distance bet-Ween the arms 101 and 105, to provide intervening space, may be varied accordingly to 'the number ot'- groups of doors and the number of doors 1n the respective groups tof/'be operated. Passing through the lower/ends of the arms 108 is an oscillatable arbor or shaft 110 carrying downwardly depending arms`111 'and 112,. The arms, 111 and 112, are fixed to the arbor 110 by pins 113. The lever 95 isfpivoted on .the arbor 110 between the arms 108-108. The arm 112 is prolonged, above the shaft 110, into a housing 114 in which a roller, or wheel 115, is pivoted, as at 116. The roller 115 is oil" to one side of its pivotal point 110 so that when the roller is raised, as shown in Fig. 3, the arms 111 and 112 are thereby moved toward. the Worm Wheel B (iand the clutch'memberwSQ, carried by the sleeve 90, ,moved into rotative coperat-ion with the clutch member 88 carried by v the driving Worm, wheelb, thereby causing the Worm -Wheel 86 t'o drive the. shaft 87.

' largest diameter.

'Fixed-to, Ior .an integral part otlie worm Wheel 8G, and .looseon the shaft 87, are two spiral taper 5 threaded cams 120 and 121.v

4.The threads of the earns, 120 and 121, extend from approximately mid-Way position, oi1t Wardlyg'in directions away from each other,l

but progressively increasing distance in radial planes from the Vshaftuntil they conimunic'ate with thefannulargrov'e 122 at,4 the:j

The outer end of the shaft 87 is supported by axhang'er 123- end-the collar 124 is fixed tothe outer end of 4 the shaft 87.

oted to the longer curved end of the lever 95, as at l133. The cross piece 132 carries an adjustable screw or pin 134, fixed-in adjusted position by a nut 135. The` pin 134 normally rests in the interspace between the threads ot the cams 120 and 121,at the smallest diameter, as shown in Fig. 3.

A bell'crank 14.0 is pivoted, as at 1.41, to a fixed part 142 of the apparatus. It is provided with an outwardly-extending arm 143, which is in the path of the projections 21 and 23 of the door sections 15 and 15', respectively.` A vertically extendingarm 144, of the bell cianl,'is connected by a. link 145 to the swinging arm 130, as at 146, so that by movement'of the arm 143,- of the bell crank, the link 1.30 mayA be swung Over S0 that the pin 134, will 4engage the thread of the rotating cam 121 or swung in the opposite direction so that the pin 134 will engage the thread of the rot-ating cam 120. When the pin 131 engages the threads of either of the cams, the swinging link, composed of the. arms 130 and 131, is depressed, on account of the continually growing diameter of the threaded portions of the cams. The outer end of the lever 95 is thereby pulled-downwardly, on its pivot 110, causing theshorter arm of 95 (F ig. 5.) to 'engage the 'head 92 of the slida-ble clutch' member 89, thereby disconnecting the clutch vinel'nbers 88. 'and 89 and stopfphlg the rotation of the shaftl 87.`

The tivo-part cam sleeve 1.07, 107 (Fig. 3

.and Fig. provided lwith serios of the sleeve 107 is clamped to the'aiially movableshaft 54 "the cams will benioved axially With the shaft when the latter is 'moved by the group selecting mechanism.

The cams 150 foi-'the various doors in the respective groups, are located at different circumferential points on the slee-ve 107,'but thecani 1:51 fr irall of the doorsin'a single group :are located in thesame 'radial plane or circumferential point for all the door voperating meohavnisins o t aigivei'i group lso that alll the :doors of that group' .maybe' simultanellisly operated'. "Sim'ilar'sets offen-ms for other groups are distributed aroundl the sleeves 107 at other axial '}')ositions A drinn shaft 250 extends substantially a distance equal to thenvdt-h of a door 15%1'5, and is supported by" hangers 251,1 and on drum sha1- t 250. also passes through a hous- 1n v 255 1n -Whichis Conta-med a ivormwheel 25 which meshes with a driving worm 258 carried by the shaft 87. B this means the drums 252--252 are rotate for winding up the cables 17--17 for opening the doors or rotated in the'opposite direction to unwmd the cables to permit the doors to descend by the operation of gravit toclosed pos1t1ons.

A spring 260 is ixe to the housmg 255, as at 261, and to the de ending lever 112, as at 262, whereby to yielblingly and normally hold 'the clutch members 88 and 89 out of drivin relation when -they are not positively eld in such engagement by cams 120-121 and lever 95.

The operation of the device is. as follows :-Assume that the door to be opened or closed, as the case may be, is in group 2 and is door No. 6, the first operation is t` turn the hand lever 6l of the door'selector 60, to

a position shown in Fig. 1 indicating 6.

This operation rotates the shaft 65 and thereby-the square selecting shaft 54 through the instrumentality of the worm'66 andthe worm wheel 67, until the` cam 150 is in a vertical plane with the roller or pulley 115,

then the vhand lever 41 of the group-selector 40 is rotated until 'it comes opposite the indication 2 onvthe disk 40'. This operation causes/the pulley 49 'to be rotated, and meshing with the rack 50, it causes the Shaft 54 to be axially moved until thecam 150, of the proper group, is brought under the roller 115, thereby raising the roller 115, as shown in Fig. 3, and causing the varms 111 and 112 to move the sleeve 9,0, which is splined to theshaft 87, inwardly toward the worm wheel 86, which is constantly rotating,-u powerfhaving previously been applied t0 `shaft 2li-until the clutch members 89 and 88 ofjth'e power wheel 86 are in driving relation. This operation causes the worm wheel 86 to drive the shaft .87 and through the worm wheels 257 and 258, to rotate'the drum 'shaft 250 that carries the drums 252, whereby the cables 17--17 are wound upon the respective drums 252, or unwoundv therefrom depending upon the direction of rotation of the shaft 24. Assuming that the cablesare being wound upon the drum and the doors 1'5-15 are being raised or opened.

vto

When the door 15 has reached near the point of its'upper limit of travel, the projec l tion 23, will engage the arm 143 of the bell crank' 140, thereby vertically displacing it in 'an upward direction, Acausing the link 145 Aso to .move the swinging yoke 130, '131 until the pin 134 engages the threaded spiral cam 120.

When the pin 134 enters the threads of the cam 120, it is adually forced downwardly thereby until 1t enters the annular raceway 122 Iof the cam, thereby ullingdown the outer vend of 'the pivotef' lever 95 on its pivotal point 110, and causing the shorter endV ofthe^1ever`95 tok move outwardly, in

' the space 94of the clutch sleeve'90, therebyaxially movmggthe clutch and sleeve, on the shaft 87, and causing disengagement ofl the clutch members 88 and 89, and stopping the rotation of the shaft 87. The sleeve 90 may be moved by the lever 95 notwithstanding the fact that the levers 111 and 112 are held in clutch-engagingposition by the elevation of the roller 115, upon the cam 150 because there is lost motion between the sleeve 93, part 96, and the sleeve 90, which is taken up by the yielding spring 99.

As heretofore explained the shaft 24 is rotatable by the electric motor 26 and the direction of rotation is determined by the slidable clutch member 36. If it now becomes desirabley to close-the door it is only necessary to rotate the shaft 24 'in the opposite direction whereupon the pin134 carried by the yoke 130'and 131 will be automatically returned to its midway position, as shown in Fig, 3, permitting the outer longer end of the lever 95 to be raised into its normal position, whereupon spring 99 will cause engagement of clutch members 88 and 89. The shaft 87 will now be rotated in the opposite direction because the cam 150 is under the roller 115, and will-continue to be rotated until the projection 121, from the door 15, is brought into contact with the lever 143, thereby pulling the yoke 130 131 to the right, into contact with the cam 121,

causing the shorter end of the lever 95 to be pushed out and the clutch members 88 and`89 to disengage as heretofore.

Should it be desirable to vopen or close another door inthe same group or'in another group, before closing the vdoor just opened, the selectors must irst be operated, which operation will remove the cam 150 from under the roller 115, of the door just opened,

after which shaft 24 may be rot-ated in either direction, without atl'ecting thel door operatingafnechanism of the door under considerationii When the door of the example is to be closed, the selecting mechanism mustV be again operated to bring the proper cam 150' again under the roller 115, as before, and the shaft 24 rotated in the direction opposite to that required to open the door and the door will'be closed, as heretofore ex lained.

he cams 150 are in the same circumfer- .doors of thatgrou'p will be simultaneously pperated, elther to open`r or closed positions,

1n a manner heretofore described. 'While' the rollers 115 of a given group are elevated jupon the respective cams 150, therollers- 115 of other unselected roups are not. so elevated, but are in sustantial contact with the outer surface of the respective sleeves 107,' so that the doors of these groups are not affected by the rotation of the shaft 24.

The series of Cams 150, 151, for the respective groups, are located at. different longitudinal positions on the sleeve 107. The extent to which the sleeves IC7-are axially moved, by the group selecting mechanism, will determine the groups, and

the rotation of the shaft 54 will determine the particular door operating mechanism. The space between the arms 10i and 105 may be of any suitable distance to contain any given number vof series of cams for a respective -number of groups.

As heretofore stated the sha-R24 may extend in sections, the full length of the series of doors, if desired, and be operated by a single electric or other motor, as the motor 26,01' a separate motor may be employed for each door and the shaft 24 limited to individual unconnected short sections near the respective doors. This is so manifest and equivalen-t that it is believed that an extra illustration is not necessary.

.Having described my invention, what 1- 1. A system of door control, for a plu rality of doors, comprising a door-operating mechanism for eadh door, a rotatable shaft extending to the doors, me-ans located at a remote point for selectively connecting any door operating mechanism to the sha-ft, a

.source of power-for rotating the shaft, and

means to automatically disconnect said door y from its, operating Amechanism yafter the door has been operated?.

2. A system of door-control for a plurality of doors, divided into groups, comprising. a normally inactive d0oroperating mec anisni for each door, one located at each door; a rotatable shaft for driving-said dooroperating mechanism; .a selector, at a remote' point, .to select the groups. in which a door is contained anda'door of a selected group; .means--ex'tendingfrom the selector to said mechanismwto connect'-said-mecha-V nism with said shaftto operate. the-door and autolnatic mea-ns to stop Athemovement.

of said door. I

3. -A system ofdoobcontrol, .for aplurality of doors divided. into groups, comprising a. door-operating mechanism for each door; means, ,remote from'gthedoors, for selecting t'lie., ;ro i.1p ;v similar. means-...for selecting the dom-.,in-fthezselected-v grou a rotatable shaft extending :.to 'allf ofzt e doors for energizing the `doorsopera-ting mechanism of vthe selected-Indoor; tof-.open or to close said door and means .extending 44from the selector vto each door: operating. mechanism to connect the rotatable v.shaftthereto.

4.-A system of door-control,l for a, pluating-mechanism l to said rality of doors, comprising a doono erating mechanism for each door; a. sha .t extending to each door and detachably connectible to each door-operating mechanism; a door-selecting mechanism for connecting the operating mechanism of the selected door to said'shaft operable from a common remote point, meansfor rotating the shaft in a given direction to open the door and in the opposite direction to close it and automatic mea-ns operable by movement of thc door to stop the operation of saiddoor operating mechanism.

5, A system of door-control, for a plurality of doors, comprising a door-operating mechanism for each door; 4e. powershfaft extending to each door and detachably con nec-tible to each door-operating mechanism; another shaft extending to each door; a door-selecting mechanism to rotate and to axially move the last named shaft to con nect the operating mechanism of the selected door to said power shaft; means for rotatingth shaft in a given direction to open a. dooft;E d inthe opposite direction to close it; and means to disconnect said power shaft from said door-o eratinp, mechanism at or about the time t e `door has reached the limit o its movement. l

6.. stem of door-control, f or a plurality of doors divided into a plurality of groups of doors, comprising a Vdoor-operating mecha-nism, onev for each door; a. power shaft conneetible to said vdoor-operating mechanisms; another shaft extending to a l saiddoor-operating mechanisms, axially movable to select the groups and rotatable to select a given door ofthe selected group, whereby to connect the selected dooroperatedmechanism to said power Shaft and door-selecting;r means for rotating the shaft andggroupfselecting means for axially movin -said--slunftV Y A system of door-control, Vfor a pluralityo'f ldoors divided into a' plurality of groups oi doors, comprising a door-operating mechanism, one for each door; a. power said dooroperating v1necha'nisms,axially .movable vto select vthe-group andf rotatable to select agiven door of 4the selected group, -Wherebyyto connect the'seleoted door-oper- POWer shaft; doorselecting means'f'or rotatmgethe said shaft; groupfsel'ectin means frl axially mo f said shaft an means', near'th'e; limit of movement of said, doors, to positively disconnect said: door .perati'ng mechanism from said-.powershaft.A y

8. A door-oper-ating mechanism, compl' j. 'ower shaft; a,

sing a constantly-'notata ll ounter-shaft providedwith!l ruins; cables onJ said counter-shaft to the -power shaft; a selectingshznft, axiuly and rotatably movable to operate ono yof' Suid cluch members to oonneob the power shaft to the counter shaft; a door, opomb'lo by Said cables, and means operable by movement of tho door to positlvely opoo said clutch, to stop movement of Said door-operating meclmmsm.

In testimony whereof I hereunto set my hund in the presence of two subscribing witnesses. v

. GEORGE F. JENKINS. In the presence 0f- 1 FORE'BAIN, MARY F. Alum. 

